If lead paint is chipping or peeling, or if it's on a surface such as a windowsill or stair rail where children can chew on it, then the lead paint should be removed or covered. Painted surfaces that rub on each other, such as doors and windows, require special attention to stop the friction. And if the paint has been damaged by other problems, such as water damage due to leaks, then the underlying problem should be fixed first.

Whatever it is, make sure that you get a proper removalist to help you work that lead paint. You want to make sure that you clear it out properly and don't leave behind any residues. If it is as toxic as they say, you don't want to take any chances.

I can't tell you the exact remedy to this,But I can help you by suggesting professional painting experts.Recently I have done home renovation where I have painted my entire home,and they helped me in solving my all painting and even staining issues.